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Rockford Fosgate Punch P142

120W MAX (60W RMS) 4" Punch Series 2-Way Coaxial Car Speakers

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120W MAX (60W RMS) 4" Punch Series 2-Way Coaxial Car Speakers

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 86.5 dB

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
found car based on your search
Fits the following location in your 1975 K25
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Jensen MPR2121

Single-DIN Digital Multimedia Receiver with Bluetooth

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Single-DIN Digital Multimedia Receiver with Bluetooth

• Single DIN Bluetooth Digital Multimedia Receiver with USB and AUX
• LCD Text Display
• iPhone and Android compatible
• 3 sets of 2 volts preamp outputs
• 4 Presets Equalizer

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
This product fits your 1975 K25
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Dash Kit/Wire Harness available and sold separately

$59.99

In stock

• Single DIN Bluetooth Digital Multimedia Receiver with USB and AUX
• LCD Text Display
• iPhone and Android compatible
• 3 sets of 2 volts preamp outputs
• 4 Presets Equalizer

Kenwood KFC-835C

3.5" 2-Way Performance Series Dual Cone Coaxial Car Speakers

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3.5" 2-Way Performance Series Dual Cone Coaxial Car Speakers

• Peak Power: 80W
• RMS Power: 46W
• Dual Cone Design
• Mounting Depth: 1-1/2"
• Water-Resistant Cone Woofer
• 4 Ohms Impedance
• Sensitivity: 89dB

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FREE shipping to VA. Delivers Oct. 7 - Oct. 11
found car based on your search
Fits multiple locations in your 1975 K25

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30
Was $60.00 Details
$40.00 /pair

In stock.

• Peak Power: 80W
• RMS Power: 46W
• Dual Cone Design
• Mounting Depth: 1-1/2"
• Water-Resistant Cone Woofer
• 4 Ohms Impedance
• Sensitivity: 89dB

JBL Stage3 6427 (Stage 3 6427)

210W Peak (70W RMS) 4"x6” Stage 3 Series 2-way Coaxial Car Speakers

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210W Peak (70W RMS) 4"x6” Stage 3 Series 2-way Coaxial Car Speakers

• 105 watts Peak Each, 35 watts RMS Each
• Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohms
• Sensitivity: 91 dB

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits the following location in your 1975 K25

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Was $109.95 Details
$63.95 /pair

In stock

Pioneer TS-G4620S

400W Max (60W RMS) 4" x 6" G-Series 2-Way Coaxial Car Speakers

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400W Max (60W RMS) 4" x 6" G-Series 2-Way Coaxial Car Speakers

• 200W Max Each / 30W RMS Each
• 1-3/16" Balanced Dome Tweeter
• Injection Molded Polypropylene Cone
• 4 ohms Impedance
• Sensitivity: 89dB
• Mounting Depth: 1-5/8"

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
found car based on your search
Fits the following location in your 1975 K25
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4
Was $65.00 Details
$60.00 /pair

In stock

Kenwood KMM-X705

Single-DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Built-in Alexa (Sirius XM Ready)

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Single-DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Built-in Alexa (Sirius XM Ready)

• Single DIN Bluetooth Digital Multimedia Receiver with USB and AUX
• LCD Text Display
• iPhone and Android Compatible
• 3 sets of 5 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
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This product fits your 1975 K25
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$10.95 savings on install accessories you need

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Was $220.00 Details
$170.00

In stock

• Single DIN Bluetooth Digital Multimedia Receiver with USB and AUX
• LCD Text Display
• iPhone and Android Compatible
• 3 sets of 5 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready

Limited time!

Dual XRM69DBT

Single DIN Digital Media Receiver with Bluetooth, USB and Aux

Price Drop, Instant Savings Already Applied!
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Single DIN Digital Media Receiver with Bluetooth, USB and Aux

• Single DIN Bluetooth Digital Media Receiver
• LCD Text Display Display
• 1 sets of 2 volts preamp outputs
• 4-Band Equalizer
• Detachable faceplate

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Fast 3-day shipping to VA. Get it Wed, Oct. 4
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Price Drop, Instant Savings Already Applied!
found car based on your search
This product fits your 1975 K25
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Dash Kit/Wire Harness available and sold separately

3
Was $59.99 Details
Save 33.34%
$39.99

In stock

• Single DIN Bluetooth Digital Media Receiver
• LCD Text Display Display
• 1 sets of 2 volts preamp outputs
• 4-Band Equalizer
• Detachable faceplate

Kenwood eXcelon KFC-X463C

200W Peak (60W RMS) 4" x 6" 2-Way Coaxial Car Speakers

Save $25 off Speaker Installation Accessories, Use Code: ACC25
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200W Peak (60W RMS) 4" x 6" 2-Way Coaxial Car Speakers

• 4" x 6" 2-way Car Speakers
• 100W Max
• 30W RMS
• Carbon-Polypropylene Cone Woofer
• Butyl Rubber Surround
• 1" PEI Dome Tweeter
• 3 ohms Impedance
• Top-Mount Depth: 1-7/8"

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
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Save $25 off Speaker Installation Accessories, Use Code: ACC25
found car based on your search
Fits the following location in your 1975 K25

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4
Was $130.00 Details
$100.00 /pair

In stock

Metra 82-4601

4" X 6" Speaker Adapter for 4" X 10" Factory Location for select 1958-2003 vehicles from Chevrolet, GMC, Oldsmobile

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4" X 6" Speaker Adapter for 4" X 10" Factory Location for select 1958-2003 vehicles from Chevrolet, GMC, Oldsmobile

• Speaker Adapter
• Made specifically for replacing factory 4" x 10" speakers with aftermarket 4" x 6" speakers
• Color: Black
• All brackets included
• Compatible with select 1958-2003 vehicles from Chevrolet, GMC, Oldsmobile Vehicles

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Fast 3-day shipping to VA. Get it Wed, Oct. 4
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This speaker adapter fits your 1975 K25
  • Rear Door 4" x 10" Full-Range

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Was $10.99 Details
$9.99

In stock

• Speaker Adapter
• Made specifically for replacing factory 4" x 10" speakers with aftermarket 4" x 6" speakers
• Color: Black
• All brackets included
• Compatible with select 1958-2003 vehicles from Chevrolet, GMC, Oldsmobile Vehicles

MB Quart FKB 108 (FKB108)

140W Peak (70W RMS) 3.5” Formula Series 2-way Coaxial Car Speakers

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140W Peak (70W RMS) 3.5” Formula Series 2-way Coaxial Car Speakers

• 70 watts Peak Each, 35 watts RMS Each
• 1" Aluminum Dome Tweeters
• Thermoformed Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

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Fast 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
Fits multiple locations in your 1975 K25

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2
Was $45.99 Details
$27.99 /pair

In stock

• 70 watts Peak Each, 35 watts RMS Each
• 1" Aluminum Dome Tweeters
• Thermoformed Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

Limited time!

Kicker CSC44 (46CSC44)

150W Peak (50W RMS) 4” CS Series Coaxial Speakers with PEI Dome

Price Drop, Instant Savings Already Applied!
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150W Peak (50W RMS) 4” CS Series Coaxial Speakers with PEI Dome

• 75 watts Max Each, 25 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB
• Mounting Depth: 1/4"

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
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Price Drop, Instant Savings Already Applied!
found car based on your search
Fits the following location in your 1975 K25
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VIP Product Get $6.30 in rewards to spend later

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Was $79.99 Details
Save 21.29%
$62.96 /pair

In stock

Lowest price in 30 days

Dual XDM280BT

Single DIN CD Multimedia Receiver with Bluetooth, USB and Aux

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Single DIN CD Multimedia Receiver with Bluetooth, USB and Aux

• Single DIN Bluetooth CD Digital Media Receiver
• LCD Text Display
• iPhone and Android compatible
• 1set of 2 volts preamp outputs
• 2-Band Graphic Equalizer with 7 Presets
• Wireless remote control included

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
This product fits your 1975 K25
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$3 savings on install accessories you need

3
Was $79.99 Details
$64.99

In stock

• Single DIN Bluetooth CD Digital Media Receiver
• LCD Text Display
• iPhone and Android compatible
• 1set of 2 volts preamp outputs
• 2-Band Graphic Equalizer with 7 Presets
• Wireless remote control included

Kenwood KDC-BT782HD

Single-DIN CD Multimedia Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

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Single-DIN CD Multimedia Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

• Single DIN Bluetooth CD Digital Multimedia Receiver with USB and AUX
• LCD Text Display
• iPhone and Android Compatible
• 3 sets of 4 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
found car based on your search
This product fits your 1975 K25
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VIP Product Get $18.00 in rewards to spend later

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$10.95 savings on install accessories you need

2
Was $230.00 Details
$180.00

In stock

• Single DIN Bluetooth CD Digital Multimedia Receiver with USB and AUX
• LCD Text Display
• iPhone and Android Compatible
• 3 sets of 4 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready

Kicker KSC4604 (47KSC4604)

300W Peak (150W RMS) 4”x6” KS Series 2-Way Coaxial Car Speakers

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300W Peak (150W RMS) 4”x6” KS Series 2-Way Coaxial Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1/2" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohms
• Sensitivity: 88 dB

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
found car based on your search
Fits the following location in your 1975 K25
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VIP Product Get $10.00 in rewards to spend later

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Was $119.99 Details
$99.99 /pair

In stock

Wet Sounds WS-BT EQ UDM-B

Under-the-Dash Mounting Bracket for select 1973-2021 vehicles from Ford, GMC, Dodge, Black

Price Drop, Instant Savings Already Applied!
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Under-the-Dash Mounting Bracket for select 1973-2021 vehicles from Ford, GMC, Dodge, Black

• Under Dash Bracket Compatible with select 1973-2021 vehicles from Ford, GMC, Dodge Vehicles
• Billet Aluminum
• Mounting Hardware Included
• Powder Coated

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FREE shipping to VA. Delivers Oct. 12 - Oct. 19
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Price Drop, Instant Savings Already Applied!
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This product fits your 1975 K25

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$169.99

Available

Ships in 10-14 days

• Under Dash Bracket Compatible with select 1973-2021 vehicles from Ford, GMC, Dodge Vehicles
• Billet Aluminum
• Mounting Hardware Included
• Powder Coated

WS-BT EQ UDM-B small

Item added to your cart.

Price: $169.99

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BTK105

5 Piece Installer's Removal Tool Kit

$18.99

$11.99

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Boss Elite BE9ACP

9" Single DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto

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9" Single DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto

• Single DIN Bluetooth Digital Multimedia Receiver
• 9" Capacitive Touchscreen Display Display
• Apple CarPlay and Android Auto Compatible
• 3 sets of 4 volts preamp outputs
• 10-Band Equalizer with 5 User Presets

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
found car based on your search
This product fits your 1975 K25
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Dash Kit/Wire Harness available and sold separately

Was $399.99 Details
$329.99

In stock

Only 2 Left!

Limited time!

Dual DCPA901

9" Single DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto

Price Drop, Instant Savings Already Applied!
DCPA901 main
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9" Single DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto

• Single DIN Bluetooth Digital Multimedia Receiver
• 9" TFT-LCD Display Display
• Apple CarPlay and Android Auto Compatible
• Three sets of 4 volts preamp outputs
• 8-Band Graphic Equalizer

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FREE 3-day shipping to VA. Get it Wed, Oct. 4
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Price Drop, Instant Savings Already Applied!
found car based on your search
This product fits your 1975 K25
install icon

Dash Kit/Wire Harness available and sold separately

1
Was $439.99 Details
Save $190.99
$249.00

In stock

JL Audio MMP-2-BK

MediaMaster® Mounting Adaptor Plate for select 1973-2021 vehicles from GMC, Ford, Dodge

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MediaMaster® Mounting Adaptor Plate for select 1973-2021 vehicles from GMC, Ford, Dodge

• Black anodized finish
• UV and Corrosion-resistant
• Full-surface gasket
• Stainless-steel hardware
• select 1973-2021 vehicles from GMC, Ford, Dodge Vehicles

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
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This product fits your 1975 K25
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VIP Product Get $8.50 in rewards to spend later

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$84.99

In stock

Only 3 Left!

• Black anodized finish
• UV and Corrosion-resistant
• Full-surface gasket
• Stainless-steel hardware
• select 1973-2021 vehicles from GMC, Ford, Dodge Vehicles

MMP-2-BK small

Item added to your cart.

Price: $84.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BTK105

5 Piece Installer's Removal Tool Kit

$18.99

$11.99

Add to cart

Alpine HDS-990

Single-DIN Status Series Digital Media Bluetooth Receiver with a Built-in display

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Single-DIN Status Series Digital Media Bluetooth Receiver with a Built-in display

• Single DIN Bluetooth Digital Media Receiver
• LCD Text Display
• Smartphone compatible
• 3 sets of 4 volts preamp outputs
• 31-Band Graphic Equalizer with Digital Time Correction
• 1 Front and 2 Rear USB Input
• Hi-resolution color display

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
found car based on your search
This product fits your 1975 K25
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VIP Product Get $140.00 in rewards to spend later

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Dash Kit/Wire Harness available and sold separately

Was $1500.00 Details
$1,399.95

In stock

Only 2 Left!

• Single DIN Bluetooth Digital Media Receiver
• LCD Text Display
• Smartphone compatible
• 3 sets of 4 volts preamp outputs
• 31-Band Graphic Equalizer with Digital Time Correction
• 1 Front and 2 Rear USB Input
• Hi-resolution color display

JVC KD-X380BTS

Single DIN Shallow Chasis Digital Media Receiver with Bluetooth (SiriusXM Ready)

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Single DIN Shallow Chasis Digital Media Receiver with Bluetooth (SiriusXM Ready)

• Single DIN Bluetooth Digital Media Receiver
• LCD Text Display
• Three sets of 4 volts preamp outputs
• 13-band EQ
• SiriusXM Satellite Radio Ready

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FREE 2-day shipping to VA. Get it Tue, Oct. 3
found car based on your search
This product fits your 1975 K25
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VIP Product Get $11.00 in rewards to spend later

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$10.95 savings on install accessories you need

Was $129.95 Details
$109.95

In stock

• Single DIN Bluetooth Digital Media Receiver
• LCD Text Display
• Three sets of 4 volts preamp outputs
• 13-band EQ
• SiriusXM Satellite Radio Ready

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    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
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    FAQ for your 1975 K25

    Q: Can I upgrade the factory stereo system in my 1975 GMC K25?

    A: Yes you can improve your sound in your K25 by upgrading your speakers and/or adding an amplifier. You may also be able to update the stereo and main display in your 1975 K25 if there is a dash kit and harness solution available.

    1975 GMC K25

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